Readability and syllable tools for writers

Credits and licences

Last updated 2026-10-15

Our own code

The tools and page layouts are written for this site. The pages make no requests to other servers.

Third-party material

None at present. If we add any library, font or data set, it will be listed here with its licence and a link (data/credits.json, rendered below).

NameUsed forLicence
CMU Pronouncing Dictionary (cmudict 0.7b)Syllable counts for words in the dictionary where our spelling rules would otherwise guess wrong. The counts are built into the tool code; nothing is downloaded.BSD-2-Clause, copyright 1993-2015 Carnegie Mellon University